3721356 has 24 divisors (see below), whose sum is σ = 9648240. Its totient is φ = 1240416.

The previous prime is 3721339. The next prime is 3721363. The reversal of 3721356 is 6531273.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17121 + ... + 17336.

It is an arithmetic number, because the mean of its divisors is an integer number (402010).

Almost surely, 2^3721356 is an apocalyptic number.

3721356 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3721356 is an abundant number, since it is smaller than the sum of its proper divisors (5926884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3721356 is a wasteful number, since it uses less digits than its factorization.

3721356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34470 (or 34462 counting only the distinct ones).

The product of its digits is 3780, while the sum is 27.

The square root of 3721356 is about 1929.0816467947. The cubic root of 3721356 is about 154.9650424113.

It can be divided in two parts, 372 and 1356, that added together give a cube (1728 = 12³).

The spelling of 3721356 in words is "three million, seven hundred twenty-one thousand, three hundred fifty-six".